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|1. (WO2018105993) RECOVERY METHOD FOR (METH)ACRYLIC ACID|
|Applicants:||LG CHEM, LTD.
|Inventors:||SONG, Jong Hun
BAEK, Se Won
MIN, Yoon Jae
KIM, Jae Yul
|Title:||RECOVERY METHOD FOR (METH)ACRYLIC ACID|
The present invention relates to a recovery method for (meth)acrylic acid and an apparatus used in the recovery method. In the recovery method for (meth)acrylic acid according to the present invention, (meth)acrylic acid aqueous solutions having different concentrations are separately discharged from (meth)acyclic acid absorption tower, and in a step for extracting (meth)acrylic acid, a high recovery rate of (meth)acrylic acid can be secured by using a particular proportion of extraction solvent, and purification energy costs can be greatly reduced, so that the recovery of (meth)acrylic acid and the operation of continuous processes can be allowed.